/** Copyright (C) 2008 Happy Fish / YuQing
 * FastDFS Java Client may be copied only under the terms of the GNU Lesser
 * General Public License (LGPL).
 * Please visit the FastDFS Home Page http://www.csource.org/ for more detail. */

package org.csource.fastdfs;

/**
* Download file callback interface
* @author Happy Fish / YuQing
* @version Version 1.4
*/
public interface DownloadCallback {
    /**
    * recv file content callback function, may be called more than once when the file downloaded
    * @param file_size file size
    *	@param data data buff
    * @param bytes data bytes
    * @return 0 success, return none zero(errno) if fail
    */
    public int recv(long file_size, byte[] data, int bytes);
}
